Convert MP4 to MP3 - M4A to MP3. • Also convert M4B, M4P, M4R to MP3. • And MP4 to WAV, MOV, MKV, AVI, WMV, WEBM, MXF, M4V, ASF, VOB, OGV, FLV, AAC, OGG, FLAC, M4A, M4B, CAF, AIFF, WMA, AC3, MP2. 💡 Convert multiple files at once, there's no limit to how many files. 🔒 All processing is performed locally on your computer where your files remain safe and private. Optimize output file size and audio, video quality; Buy once and keep forever; ## CORE FEATURES Convert MP4 to MP3 and more output formats: • AAC, OGG, FLAC, M4A, M4B, CAF, WAV, AIFF, WMA, AC3, MP2. Convert MP4 to MOV, MKV, AVI and more output formats: • MOV, MKV, AVI, WMV, WEBM, VOB, MXF, M4V, ASF, OGV, FLV. ## OPTIMIZE OUTPUT VIDEOS Convert MP4 to MP3 (convert MP4 to Audio) • Auto mode: keep all default settings or auto choose the best suitable configurations. • Audio codec options. • Audio number of channels options. • Audio sample rate options. • Audio bitrate options. Not only a MP4 video, audio converter, but also optimize size and quality output videos. • Auto mode: keep all default settings or auto choose the best suitable configurations. • Video resolution options: 4K (2160p), 2K (1440p), Full HD (1080p), HD (720p), SD (480p, 360p, 240p). • Video framerate options. • Video video codec options. • Video bitrate options. • Audio number of channels options. • Audio sample rate options. • Audio codec options. • Audio bitrate options. ## COMMON FEATURES • Enable hardware acceleration to save time. • Auto shutdown when completed. • Save time with multiple files processed at once or focusing on a single video.